Finding the Fourth Proportional to 71,508.02, 98,689.59 and 48,839.76

Step by Step Solution

1. Step 1: Write the proportion equation
   71,508.02 : 98,689.59 = 48,839.76 : x
2. Step 2: Convert to fraction form
   71,508.02/98,689.59 = 48,839.76/x
3. Step 3: Cross multiply
   71,508.02x = 98,689.59 × 48,839.76
4. Step 4: Simplify right side
   71,508.02x = 4,819,975,890.10
5. Step 5: Solve for x
   x = 4,819,975,890.10/71,508.02
6. Step 6: Final answer
   x = 67,404.69